Other Systems dream of this performance at f/5.6 - but at f/2.0?

Started Oct 25, 2012 | Discussions thread
philosomatographer
OP philosomatographer Contributing Member • Posts: 539
Re: Well done

SergeyGreen wrote:

I took this image (which I posted some time earlier) with an *uncoated* first-generation Schneider Symmar 150mm f/5.6, made sixty+ years ago, on pushed film (ISO1600) in a 50-year old mechanical camera.

Non-telecentric, how come?

I know you're being facetious, but (here goes anyway): The demands of a digital sensor with "depth" vs a piece of film that is light-sensitive at the very surface, and tolerant of steep angles of incidence, are dramatically different.

Just put any ultra-wide-angle lens on a Leica M digital, and observe the absurd colour shifts across the frame, even with its offset microlenses and in-camera correction. The Zuiko Digital wide-angle lenses runs rings around any Leica wide-angle on a digital M in terms of correct colour and light falloff.

On film, it's a different story of course, and there, simpler, symmetric lens designs are almost always superiour, smaller, better-corrected (except for light falloff, which cannot be avoided with any non-retrofocus wide-angle design).

That is why even the lenses for medium-format digital backs (e.g. Rodenstock HR-Digaron series) have been reformulated as retrofocus, dare I say more "telecentric" lenses.

 philosomatographer's gear list:philosomatographer's gear list
Nikon Df Nikon AF-S Nikkor 14-24mm f/2.8G ED Nikon AF-S Nikkor 200mm f/2G ED-IF VR Olympus Zuiko Digital ED 14-35mm 1:2.0 SWD Carl Zeiss Makro-Planar T* 2/100 +3 more
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